While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
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If you don't mine a used one go to EE. They come up almost every day and some have been used once or twice or still in box.
For new, the Calgary Shooting Centre is a great place to order from. I've bought lots of stuff over the years from them and the service is outstanding
At the bottom of the homepage, there are sections for buying, selling and trading guns and gear. You have to apply for access... instructions for applying are at the top of the section.
As you don't say where up north you are it's hard to advise but most places from the big box stores to the LGS carry the SR-22 rifle. In the GTA Al Flashertys seems to be the cheapest but if you're closer to Cabelas it's not worth the trip. Prices over the last year new, that I've seen, range from $750 - $850 with the average at $799.
Check out Iron Eagle Tactical. They are the mecca of SR22 parts, and have no problems shipping up here. I fully outfitted mine with IET parts. The owner is VERY nice, and calls if there are any problems. Says he'd rather talk to someone than email. Super happy with my purchases from him.